Answer This ....Which had come in cbse science board exam 2019 which was held yesterday..
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The heating element of the oven is made up of alloy which has very high resistance. So, when current flows through the heating element, it becomes too hot and glows red due to heating effect of current. But the resistance of cord which is usually of copper or aluminium is very low so it does not glow.
Hope you understand.
Victorshashank:
Yss correct
Tnkz.
wlcm
Hope you get it! And how was the yesterdays exam!
fantastic
the paper was very easy than the maths paper
Ha! All the best for the coming exams.
Thanks
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